Silencer for internal-combustion engines.



W. L. TOBEY. SILENGER FOR INTERNAL COMBUSTION ENGINES. APPLICATION FILED my 14, 1909.

Patented N06; 16, 1909 v WITNESSES- jwm path.

UNITED STATES WILLIAM LAIGHTON TOBEY, OF WINTER/OP, MASSACHUSETTS.

SILENCER FOR INTERNAL-COMBUSTION ENGINES.

Specification of Letters Patent.

Patented Nov. 1d, 190% Application filed May 14, 1509. Serial No. 496,093.

To all ult o'irlit may concern lie it knovvn that. I, VILLIAM LAIGIITON TUliliY, a citizen of the linited States, of Winthrop, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Silencers for Internal-Comhnstioii Engines, of which the following is a specification.

My invent ion relates to mulllers or silencers used in connection vvitdrexlmust piping oit. internal combustion or gas engines and has for its object to so completely extract the heat from the exhaust gases and reduce the volume and consequent pressure ot the exhaust gasesas to make their exhaust into the atmosphere practically noiseless. 1 accomplish this in the following manner.

'The drawing shows in section an expansion chamber (i' proportioned to the size of the engine cylinder used.

The exhaust gases enter at 1/. passing through the internal elbow pipe, I) having a vertical outlet at C. g This outlet is formed with an increasing sectional area to reduce friction and around and below this outlet is a suitable saucer shaped tlange r]. to direct the tlow of the exhaust gases inthe desired Above the vertical outlet U. is a horizontal dellectingplate e. oi a shape. to cause the least friction of the gases and. with the lower outside edge below the top of the vertical exhaust outlet C. The pipe f is connected with .the circulating Water from the cylinde 'avater jacltets, or other source and discharges on to the center of the. horizontal deflecting plate c. The water flows from the circumference oi the'detlccting plate c. in the form of spray or a thin sheet, providing the most complete and ellicicut medium for cooling the exhaust. gases as they enter the expansion chamber (l. The

lower edge of the deflecting plate 1'. being below the top oi the vertical discharge nozzlc (7. makes it practically impossible for the water flowing over the deflecting plate a. to enter the exhaust nozzle 1) and thence into the cylinder. 7

The vertical exhaust outlet C. being located near the top of the expansion chamber (l makes it practically impossible for water to [low back through the exhaust outlet l l and tlood the cylinder as the drain It. in the J bottom of the exhaust chamber G allows free 5 escape of all returning vater before the level of the vertical outlet C. is reached.

The gases escape from the her (it at the outlet llaving thus described my invention what I claim as new and desire to secure by Letters latent'is: t.

1. In a silencer for internal combustion engines, the conibination of an expansion expansion chamchamber containing a centrally located vertical inl etfnozzle having a connecting pase' t ogoutsidc .of expansion chamber, a horizontal gas deflecting and water scatterstantially as described.

2. In a silencer for internal combustion engines, thecombination of an expansion ing plate having a Water inlet centrally lo- ,cated-over said plate andv a gas outlet subside of expansion chamber, said nozzle havmg a surrounding flange below and near the top of said nozzle to deflect the escaping gases into immediate contact with the Water delivered over the edge of a superimposed horizontal gas deflecting and water scatter: ing plate having a Water inlet centrally located over said plate and a gas outlet subs stantially as described.

In a silencer for internal combustion engines, the combination of an expansion chamber containing a centrally located vertical inlet nozzle having a connecting passage through expansion chamber to outside of chamber, said nozzle having a surrounding saucer shaped flange to deflect the escaping gases into immediate contact with the water delivered over the edge of a superimposed horizontal gas deflecting and water scattering plate before said gases enter said expansion chamber. a Water inlet located centrally over said water scattering plate and a gas outlet substantially as described.

-J. in a silencer for internal combustion engines. the combination of an expansion chamber, a. centrally located vertical inlet nozzle having a connecting passage to outside. of expansion chamber, and a surrounding flange below and near the top of said nozzle to deflect the gases at nozzle outlet into direct contact with the water from the outside edge of a superimposed horizontal gas "detlccting and water scattering plate having a water inletcentrall'y located over said plate. a gas outlet and a water drain substantially as described. I 5fIn-a silencer for int-ernahcombustioii engines, the combination of an expansion chai'nber, a VOItiCtl inlet nozzle having a connecting passage through the expansion chamber, and asaucer shaped flange, surrounding and located immediately below said nozzle outlet, to deflect: the gases into immediate contact with the water i ving from the edge of a superimposed horizontal gas deflecting'and \vater scattering plate having a Water inlet centrally located over said plate, a gas outlet and a water drain substantially as described.

6. In a silencer tonintcrnal comlmstion engines, an expansion chamber having a centrally located vertical inlet nozzle with its connecting passage to outside of expansion chamber, a superimposed horizontal gas deflecting and Water scattering plate having a Water inlet centrally located oversaid water scattering plate, a gas outlet and a water drain substantially as described;

7. In a silencer for internal combustion engines, an expansion chamber a vertical gas inlet nozzle having its connecting passage Within and to the outside of said ex pansion chamber, a superimposed horizontal gas deflecting and water .---c-.ittc1ing plate having its lower outside edge below the level of outlet of vertical gas inlet nil/into, a water inlet centrally located over said water scattering plate, a gas outlet and 1: water drain substantially as described.

In testimony whcreol' l have atlixed my signature, in presence of two witnesses.

\VILLIAM Litltlll'ltm TOBEY Witncsses:

Eanns'r C. yl 'ninnnx, N A'rnAN Gnu: u. 

